Improvement in road-scrapers



W. THOM PSON.

Improvement in Road-Scr'apers.

Patented Got. 29,1872.

JM. PHUTUUTHGHIPll/C LV. M Y. I SBURNES FRUCESS.)

WOODARD THOMPSON, O111 GARDINER, MAINE.

IMPROVEMENT IN ROAD'SCRAPERS.

Specification forming part of Letters Patent No. 132,?011, dated October29, 1872.

To all whom it may concern:

Be it known that I, WooDARD THoMPsoN, of Gardiner, in the county ofKennebec and State of Maine, have invented certain new and usefulImprovements in RoadScrapers 5 and I do hereby declare that .thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying draw` ing and to the letters of referencemarked thereon, which form a part of this specilication.

The nature of my invention consists in the construction and arrangementof a roadcralperf7 as will be hereinafter more fully set Ort j In orderto enable others skilled in the art to which myinvention appertains tomake and use the same, I will now proceed to describe its constructionand operation, referring to the annexed drawing, which represents aperspective view of my road-scraper. l

A represents an inclined beam. orh any suitable dimensions, connected bycross-bars B B with a runner, C. The rear end of this runner is evenwith the rear end of the beam A, but

A extends only about half the distance forward,

the runner being on aline parallel with the line of draft, while thebeam inclines outward so as to gradually increase the distance betweenthem. Between the front end of the runner and the side of the beam thetongue E is pivoted. The lower inner edges of both the beam and runnerare provided with steel plates a--the same as the usual Scrapers. Thebevel cut lengthwise of the road makes it very smooth and easy tohandle. The machine is prevented from turning around to one side bymeans of a gate or rudder, D, hinged between the upper rear edges of thebeam'` and runner; and said gate is provided with ali-evier or handle,G, which extends forward so as to be operated by the driver on his sea'ta'tHl, arranged on the runner. On the outer side of the beam A, at thefront end, is secured arounded faced shoe, I and above the same, totheiend of the beam, is attached a bar, J, by means of a screw, b,passing through a slot in said bar and into the beam. The rear end ofthis bar J is placed on the outer end of a lever, K, which carries awheel, L, between said bar and the beam A. The bar J, while allowing thewheel L to move freely up and down, being pivoted by the piu b, limitsthe forward and backward movement ofthe lever K, and serves as a braceto said lever when the Wheel L comes in contact with a stone or otherraised obstruction, as the wheel will be thrown back, when meeting suchobstruction, until the front end of the slot in the bar J is brought tobear against the pin b, when the wheel is then moved over theobstruction and the strain thrown partially upon the bar J. The lever Kis pivoted in a forked standard, P, and its inner end rests upon eitherof two oii'sets or shoulders, d d, on another post, R.

Vhen the lever is raised to the upper oEset or shoulder the entire beamA is raised up from the ground, so that the machine will move on thewheel L and the runner in goin g to and from the work; but when thelever is down on the lower shoulder the wheel is loose and the beam willoperate.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The inclined beam and scraper A a, rounded faced shoe I, runner C,cross-bars B B, and tongue E, the several parts being constructed andarranged for operation substantially as and for the purpose herein setforth.

2. The hinged gate or rudder D, with lever or handle G, combined withthe runner C, beam A, and cross-bar B, substantially as and for thepurpose described.

3. The combination of the slotted bar J, le ver K, wheel L, forkedstandard P, and shoule dered standard R, all constructed and arranged 1with a roadscraper, substantially as and for the purposes herein setforth.

In testimony that I claim the foregoing as my own I atlix my signaturein presence of two witnesses.

WOODARD THOMPSON. Witnesses:

ARTHUR BERRY, JOHN BERRY.

